• Study Guide


    Note:  This is a simply a guide of questions to study for the test.  It is not a promise that every question on the test is covered here.  In addition, please note that questions on the test may be of a different type (matching, multiple choice, etc.)  

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    DEFINE

    model

    electron configuration

    isotope

    SHORT ANSWER

    1. Why do we use models?
    2. How did the "Rock Model" describe atoms?
    3. How did the "Raisin Bun Model" describe atoms?
    4. How did the "Nuclear Atom Model" describe atoms?
    5. How did the "Planetary Model" describe atoms?
    6. How did the "Quantum Mechanical Model" describe atoms?
    7. How can models be proved wrong?
    8. What does the word "atom" mean in the Greek language?
    9. What did we learn about atoms from the discovery of the electron?
    10. What did we learn about atoms from the discovery of the nucleus?
    11. What problem was caused by the discovery of the nucleus?
    12. What did we learn from the discovery that atoms could gain and lose energy?
    13. Which particle was the last one discovered?
    14. Why was the neutron the last particle discovered
    15. Which particle was the first one discovered?
    16. Why was the electron the first particle discovered?
    17. What did we learn about atoms from the discovery of isotopes?
    18. What did we learn about atoms by conducting nuclear reactions?
    19. A variation of an element due to differing numbers of neutrons is called a(n) ________.
    20. True or False?  Hydrogen and helium are isotopes.  Explain.
    21. Determine the number of protons in the the isotope ⁶⁴Cu₂₉.
    22. True or False?  The following atoms are isotopes: atom #1 with 13 protons, 13 electrons, and 14 neutrons, and atom #2 with 13 protons, 13 electrons, and 14 neutrons.  Explain.
    23. True or False? Isotopes have the same mass number.  Explain.
    24. Atoms of isotopes contain the (same, different) number of protons.
    25. Determine the number of electrons in the isotope ⁶⁴Cu₂₉.
    26. True or False? Isotopes have similar chemical properties.  Explain.
    27. Determine the number of protons in the isotope ¹⁰⁸Ag₄₇.
    28. Determine the number of neutrons in the isotope ¹⁰⁸Ag₄₇.
    29. Write the correct symbol for the isotope that has 26 protons and 30 neutrons.
    30. True or False? Isotopes have the same atomic number.  Explain.
    31. The number of neutrons in an atom of Br-81 (⁸¹Br₃₅) is _____.
    32. True or False? The following atoms are isotopes: atom #1 with 35 protons, 35 electrons, and 46 neutrons, and atom #2 with 36 protons, 36 electrons, and 46 neutrons.  Explain.
    33. Write the correct symbol for the isotope that has 56 protons and 82 neutrons.
    34. Determine the number of neutrons in the isotope ⁶⁴Cu₂₉.
    35. Atoms of isotopes of the same element contain the (same, different) number of electrons.
    36. True or False?  Isotopes have the same atomic weight. Explain.
    37. True or False? The following atoms are isotopes: atom #1 with 35 protons, 35 electrons, and 46 neutrons, and atom #2 with 34 protons, 34 electrons, and 48 neutrons. Explain.
    38. Determine the number of electrons in the isotope ¹⁰⁸Ag₄₇.
    39. Atoms of isotopes of the same element contain the (same, different) number of neutrons.
    40. True or False - Isotopes have similar physical properties.
    41. What is the particle that causes isotopes to exist?
    42. Write the electron configuration for the following elements:
    nitrogen (N - #7)
    aluminum (Al - #13)
    iron (Fe - #26)
    43. What determines where electrons go in an atom?
    44. What 2 things determine the amount of energy an electron's pathway requires?